公开(公告)号：EP1436808A4

公开(公告)日：2006-08-09

申请号：EP02801536

申请日：2002-10-10

申请人： KONINKL PHILIPS ELECTRONICS NV ,  MATSUSHITA ELECTRIC IND CO LTD ,  SONY CORP

发明人： HEEMSKERK JACOBUS PETRUS JOSEP ,  SCHEP CORNELIS MARINUS ,  STEK AALBERT ,  TANAKA SHINICHI ,  ISHIBASHI HIROMICHI ,  FURUMIYA SHIGERU ,  OGAWA HIROSHI ,  YAMAGAMI TAMOTSU ,  KOBAYASHI SHOEI

IPC分类号： G11B20/10 ,  G11B7/00 ,  G11B7/007 ,  G11B7/26 ,  G11B20/12 ,  G11B20/14 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/24

CPC分类号： G11B27/3027 ,  G11B7/00 ,  G11B7/24082 ,  G11B20/1217 ,  G11B20/1403 ,  G11B27/19 ,  G11B27/24 ,  G11B2020/1239 ,  G11B2020/1265 ,  G11B2020/1268 ,  G11B2020/1272 ,  G11B2020/1287 ,  G11B2020/1298 ,  G11B2220/213 ,  G11B2220/218 ,  G11B2220/235 ,  G11B2220/2541

摘要： The information such as address is to be efficiently formed into wobble components and further the S/N ratio in reproducing the information formed into the wobble components is to be improved. In an optical disc of the present invention, there are recorded in a wobble the address information modulated in accordance with the MSK (minimum shift keying) system and the address information modulated in accordance with a modulation system in which even harmonics signals are added to a sinusoidal carrier signal and in which the polarity of the harmonics signal is changed depending on the sign of the data for modulation.

公开(公告)号：EP1137003A4

公开(公告)日：2003-07-23

申请号：EP00951900

申请日：2000-08-08

申请人： SONY CORP

发明人： SAKO YOICHIRO ,  OGAWA HIROSHI ,  INOKUCHI TATSUYA

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24 ,  G11B20/10 ,  G11B20/12

CPC分类号： G11B7/0045 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24 ,  G11B20/10 ,  G11B20/10527 ,  G11B20/12 ,  G11B20/1217 ,  G11B27/105 ,  G11B2007/0013 ,  G11B2020/10592 ,  G11B2020/10694 ,  G11B2020/1087 ,  G11B2020/1227 ,  G11B2020/184 ,  G11B2220/235 ,  G11B2220/237 ,  G11B2220/2537

摘要： An optical recording medium with recording layers laminated is provided. The optical recording medium includes at least a first recording layer where first data is recorded and a second recording layer where second data associated with the first data is recorded. The first and second recording layers are laid one over another, and the second data is recorded at a location on the second recording layer, the location being in the neighborhood of the location on the first recording layer where the first data associated with the second data is recorded. Signals can be reproduced in various forms by properly combining data read from the recording layers.

摘要翻译： 具有层叠在一起的多个记录层的光记录媒体。 光记录介质至少包括要记录第一数据的第一记录层和要记录第二数据的第二记录层。 第一和第二记录层被层叠在一起，其中第二数据被记录在第二记录层的位于第一记录层中与第二数据相关的第一数据被记录的位置附近的位置处。 可以通过适当地合成从各个记录层读出的数据来获得可变配置的重放信号。

公开(公告)号：EP1111601A4

公开(公告)日：2005-01-26

申请号：EP00942371

申请日：2000-06-28

申请人： SONY CORP

发明人： SAKO YOICHIRO ,  OGAWA HIROSHI ,  INOKUCHI TATSUYA

IPC分类号： G11B7/00 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/08511 ,  G11B7/0945 ,  G11B2007/0013

摘要： A device for recording and/or reproduction of optical disks having a laminate of a plurality of recording layers comprises an optical pickup capable of emitting a light beam to any of the recording layers and including a photodetector for receiving the reflection from the recording layer; and a comparator that compares a peak level of the output signal from the photodetector with a predetermined reference value and, in accordance with the result of comparison, determines that recording layer of the optical disk on which the light beam from the optical pickup is focused.

摘要翻译： 作为记录介质的光盘记录器和/或播放器，具有一个彼此形成的多个记录层的光盘。 它包括具有光电检测器的光学拾取器，用于将光束引导到在光盘中彼此形成的多个记录层中的任何一个，并且检测来自记录层的返回光束，以及标识符，以比较来自 所述光检测器具有预定的参考值，并且基于比较结果识别在所述光盘中形成的所述多个记录层中的哪一个在所述光拾取器上聚焦于所述光束上。

公开(公告)号：EP0276326A4

公开(公告)日：1989-09-11

申请号：EP87904951

申请日：1987-07-29

申请人： SONY CORP

发明人： OGAWA HIROSHI

IPC分类号： G11B7/004 ,  G11B7/125 ,  G11B11/105 ,  G11B7/00 ,  G11B11/10

CPC分类号： G11B7/126 ,  G11B7/004 ,  G11B11/105

摘要： An optical disc recording/reproducing apparatus for recording and reproducing data using an optical disc as the recording medium, wherein use is made of an optical disc (1) having pit regions (2a) with servo pits and data regions (2a) on which data will be written, that are alternately provided along the circumferential direction, reference clocks are formed in synchronism with said servo pits, and a laser diode (21) is driven by pulses in synchronism with the reference clocks to write or erase the data, thus enabling the life of the laser diode to be lengthened and the disc capacity to be effectively utilized.

公开(公告)号：EP1589530A4

公开(公告)日：2008-03-19

申请号：EP04706838

申请日：2004-01-30

申请人： TOPPAN PRINTING CO LTD ,  SONY CORP

发明人： KINOSHITA TOSHIRO ,  KOBAYASHI AKIHIKO ,  SASAKI NOBORU ,  ARISAWA MAKOTO ,  IWASE HIROSHI ,  SEKIGUCHI MAMORU ,  OGAWA HIROSHI ,  YAMASAKI YOSHIMORI ,  OSATO KIYOSHI ,  YAMAMOTO MASANOBU ,  KASHIWAGI TOSHIYUKI

IPC分类号： G11B7/24 ,  G11B7/242 ,  G11B7/243 ,  G11B7/245 ,  G11B7/253 ,  G11B7/256 ,  G11B7/257 ,  G11B7/26

CPC分类号： G11B7/2539 ,  G11B7/242 ,  G11B7/243 ,  G11B7/245 ,  G11B7/256 ,  G11B7/257 ,  G11B7/26 ,  G11B7/265 ,  G11B23/40

公开(公告)号：EP0753845A4

公开(公告)日：1998-12-02

申请号：EP96901488

申请日：1996-01-31

申请人： SONY CORP

发明人： OGAWA HIROSHI ,  IIMURA SHINICHIRO

IPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/09 ,  G11B19/00 ,  G11B19/02 ,  G11B19/04 ,  G11B19/12 ,  G11B20/10 ,  G11B20/18

CPC分类号： G11B19/04 ,  G11B7/0037 ,  G11B7/0908 ,  G11B7/0909 ,  G11B7/094 ,  G11B7/0945 ,  G11B19/00 ,  G11B19/02 ,  G11B19/12 ,  G11B20/10009 ,  G11B20/18 ,  G11B2007/0006

摘要： An apparatus comprising an optical pickup for reproducing information stored on optical recording media, which automatically set conditions for reproduction of individual recording media loaded into a drive so as to obtain compatibility with different types of media. Even when an optical recording medium for low-density recording is loaded, the recorded information can be reliably reproduced.

公开(公告)号：EP1118987A4

公开(公告)日：2007-01-03

申请号：EP00935596

申请日：2000-06-08

申请人： SONY CORP

发明人： SAKO YOICHIRO ,  IHASHI TAKAO ,  INOKUCHI TATSUYA ,  OGAWA HIROSHI ,  YAMAMOTO MASANOBU

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B7/09 ,  G11B7/24 ,  G11B7/085

CPC分类号： G11B7/005 ,  G11B7/24 ,  G11B7/24038 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical disk comprises a substrate, on one side of which a first recording layer and a second recording layer of different reflectivities are formed one on another, and a protective coating is provided on the first or second recording layer, which is farther from the substrate. For reproduction, a light beam is emitted from a single light source to the first or second recording layer through a single object lens. Based on whether the light beam is reflected from the first or second recording layer, the object lens is moved along its optical axis and focused on the recording layer to reproduce information.